WO2014129019A1 - 車両用クーリングファン用制御システム及びその制御方法 - Google Patents

車両用クーリングファン用制御システム及びその制御方法 Download PDF

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Publication number
WO2014129019A1
WO2014129019A1 PCT/JP2013/079303 JP2013079303W WO2014129019A1 WO 2014129019 A1 WO2014129019 A1 WO 2014129019A1 JP 2013079303 W JP2013079303 W JP 2013079303W WO 2014129019 A1 WO2014129019 A1 WO 2014129019A1
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WO
WIPO (PCT)
Prior art keywords
control device
vehicle
fan
control
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2013/079303
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
中野　浩児
洋行 上谷
鈴木　敦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Thermal Systems Ltd
Original Assignee
Mitsubishi Heavy Industries Automotive Thermal Systems Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Automotive Thermal Systems Co Ltd filed Critical Mitsubishi Heavy Industries Automotive Thermal Systems Co Ltd
Priority to CN201380071765.8A priority Critical patent/CN104981378B/zh
Priority to US14/760,606 priority patent/US9421847B2/en
Priority to DE112013006707.2T priority patent/DE112013006707T5/de
Publication of WO2014129019A1 publication Critical patent/WO2014129019A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
    • B60H1/00828—Ventilators, e.g. speed control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00421—Driving arrangements for parts of a vehicle air-conditioning
    • B60H1/00428—Driving arrangements for parts of a vehicle air-conditioning electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00978—Control systems or circuits characterised by failure of detection or safety means; Diagnostic methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
    • B60H1/08—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator
    • B60H1/10—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator the other radiator being situated in a duct capable of being connected to atmosphere outside vehicle
    • B60H1/12—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator the other radiator being situated in a duct capable of being connected to atmosphere outside vehicle using an air blower
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/04—Pump-driving arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2031/00—Fail safe
    • F01P2031/36—Failure of coolant pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses

Definitions

  • the present invention relates to a control system for a vehicle cooling fan and a control method thereof.
  • the fan control device that controls the cooling fan of the on-vehicle heat exchanger is disposed under the vehicle ECU (Electronic Control Unit), and the cooling fan control is performed by PWM (pulse width modification) output from the vehicle ECU Motor speed control is performed according to the duty ratio of the signal.
  • the motor rotational speed is controlled based on the vehicle speed, the engine coolant temperature, and the AC pressure.
  • the air conditioner ECU calculates necessary fan control based on the pressure signal of the air conditioner and the vehicle speed signal received from the vehicle side, and outputs it to the vehicle ECU.
  • the vehicle ECU further adds the vehicle speed and the engine coolant temperature to the signal to determine the rotational speed of the fan motor, and outputs a fan drive PWM signal.
  • the air conditioner is off, the vehicle ECU determines the fan rotational speed based on the vehicle speed and the engine coolant temperature, and outputs a fan drive PWM signal.
  • the vehicle ECU even when an abnormality occurs in the fan motor for driving the cooling fan, the vehicle ECU only sends the PWM signal unilaterally to the fan control device side, and the fan control device
  • the communication means is not provided between the side and the vehicle ECU, and there is a problem that the vehicle side can not detect an abnormality of the fan motor.
  • the vehicle ECU and the fan control device are connected via separate harnesses, wiring in the vehicle becomes complicated, and it is difficult to notify the vehicle side of an abnormality on the fan control device side.
  • An object of the present invention is to provide a control system for a cooling fan for a vehicle capable of detecting an abnormality of a fan motor on a vehicle side with simple wiring and a control method thereof.
  • a fan control device having a motor control device for controlling a three-phase motor for driving a cooling fan for supplying air to a vehicle-mounted heat exchanger, and a vehicle above the fan control device.
  • a control system for a vehicle cooling fan comprising: a first control device to control; and a second control device to control an air conditioner of the vehicle, wherein the fan control device, the first control device, and the first control device. 2)
  • the control unit and the control unit are connected so as to be able to exchange information with each other via the vehicle network, and the fan control unit detects an abnormality in a switching element included in the motor control unit via the vehicle network.
  • the abnormality information is output, and the first control device is configured to output the abnormality information via the vehicle network when the acquired abnormality information is an abnormality having a high degree of importance.
  • the switching element is, for example, a power transistor formed of a semiconductor element, and a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), a bipolar transistor, an IGBT (Insulated Gate Bipolar Transistor) or the like is used.
  • MOSFET Metal-Oxide-Semiconductor Field-Effect Transistor
  • bipolar transistor an IGBT (Insulated Gate Bipolar Transistor) or the like
  • IGBT Insulated Gate Bipolar Transistor
  • the abnormality information of the three-phase motor is reported to the vehicle through the vehicle network, so that the abnormality of the three-phase motor driving the cooling fan can be detected on the vehicle side
  • the second control device that controls the air conditioner and the motor control device are protected and controlled from the control device on the vehicle side (the first control device), thereby preventing a serious accident. Can be used to help determine the cause.
  • highly important abnormality information is an abnormality that may cause harm to human beings.
  • the fan control device the first control device and the second control device are mutually connected to be able to exchange information via the vehicle network, the fan control device is controlled by the conventional PWM control of rotation speed and You can expect a quick and precise response in comparison. Therefore, the air conditioner can be controlled precisely according to the state of the three-phase motor, which leads to comfortable and precise control of the air conditioner.
  • the second control device to which the control system for a cooling fan for a vehicle is applied controls the second control device via the vehicle network in a normal state other than the case where a serious abnormality is detected.
  • the configuration is preferred. According to this configuration, when in the normal state, no load is placed on the host system on the vehicle side and the communication system such as CAN.
  • the fan control device and the second control device are connected by a communication network for transmitting and receiving a PWM signal for controlling the switching element in the fan control device in response to a duty.
  • Communication control in which the fan control unit controls the switching element of the motor control unit via the communication network based on PWM control, and communication control via the vehicle network
  • a rotational speed instruction of the three-phase motor may be acquired via at least one of the PWM control means and the communication control means.
  • the fan control device can obtain the rotational speed instruction via the communication network or via the vehicle network. Therefore, even with conventional PWM duty control, the vehicle network that has become mainstream in recent years Even control by (for example, CAN (Controller Area Network) communication, LIN (Local Interconnect Network) communication, etc.) can be coped with.
  • CAN Controller Area Network
  • LIN Local Interconnect Network
  • a fan control apparatus having a motor control apparatus for controlling a three-phase motor for driving a cooling fan for supplying air to an on-vehicle heat exchanger, and a vehicle above the fan control apparatus.
  • a control method of a control system for a cooling fan for a vehicle comprising a first control device for controlling the air conditioner of the vehicle and a second control device for controlling the air conditioning device of the vehicle, the fan control device and the first control device.
  • the first control device controls the vehicle network Through the click is a control method of the fan control unit and a second control device for a vehicle cooling fan control system for protecting control.
  • the present invention has an effect that the abnormality of the fan motor can be detected on the vehicle side by simple wiring.
  • FIG. 1 shows a schematic configuration diagram of a control system (control system for a cooling fan for a vehicle) 1 according to the present embodiment.
  • the control system 1 is above the fan control device 2 and a fan control device 2 having a motor control device that controls a three-phase motor that drives a cooling fan that supplies air to the radiator.
  • a vehicle-side ECU (first control device) 3 for controlling a vehicle
  • an air-conditioner ECU (second control device) 4 for controlling an air conditioner of the vehicle
  • a body-system ECU 5 for controlling a body system such as an interior
  • an engine And a power train 6 for transmitting the energy generated by the drive wheel to the drive wheels.
  • the present invention can be applied to a system in which other vehicle components not shown in FIG. 1 are connected to a vehicle network.
  • the fan control device 2 the vehicle side ECU 3, the air conditioner system ECU 4, the body system ECU 5, and the power train 6 are mutually connected via the vehicle network CAN 7 so as to exchange information with each other.
  • vehicle network CAN 7 so as to exchange information with each other.
  • CAN as a vehicle network
  • the present invention is not limited to this.
  • other systems such as LIN and FlexRay may be used, and the present invention is not particularly limited. I will not.
  • FIG. 2 shows a functional block diagram of the fan control device 2 according to the present embodiment.
  • the fan control device 2 includes a three-phase motor 30 and an inverter system 20 that drives the three-phase motor 30.
  • the inverter system 20 includes a motor control device 21 having a switching element 22, a measuring unit 23, a third control unit 24, and an insulating unit 8.
  • the motor control device 21 converts a direct current supplied from a high voltage power source 40 such as a high voltage battery or a generator into a three phase alternating current to drive the three phase motor 30.
  • the high voltage power supply 40 is, for example, a voltage of 200 [V] or 400 [V], and supplies power to the motor control device 21 via the HV filter 26.
  • the low voltage power supply 50 is a vehicle battery power supply or the like, and supplies, for example, a voltage of 12 [V].
  • the switching element 22 is a power transistor formed of a semiconductor element, and, for example, a MOSFET, a bipolar transistor, an IGBT or the like is used.
  • a semiconductor material a Si-based semiconductor or a SiC-based semiconductor is used.
  • the insulating unit 8 electrically insulates the low voltage system 9 to which power is supplied from the low voltage power supply 50 and the high voltage system 10 to which power is supplied from the high voltage power supply 40. Further, the insulating unit 8 is operated by the power supplied from the low voltage power supply 50, and specifically includes an insulating DC-DC converter 81 and an insulating CAN driver (communication control means) 82. There is.
  • the isolated DC-DC converter 81 supplies the power of the low voltage power supply 50 to the motor control device 21 and the third control unit 24. Further, the power supplied by the isolated DC-DC converter 81 is a drive voltage (for example, 5 [V]) of the third control unit 24 or a drive voltage (for example, 15 [V]) of the motor control device 21. Used.
  • the isolated CAN driver 82 is connected to the vehicle network CAN 7, is connected to the vehicle ECU 3 via the vehicle network CAN 7, and exchanges information between the vehicle ECU 3 and the third control unit 24.
  • the fan control device 2 When an abnormality is detected in the switching element 22 included in the motor control device 21, the fan control device 2 outputs the abnormality information via the CAN driver 82 connected to the vehicle network CAN7.
  • the vehicle side ECU 3 protects and controls the fan control device 2 and the air conditioner system ECU 4 via the vehicle network CAN 7 when the abnormality information is an abnormality having a high degree of importance.
  • highly important abnormality information is an abnormality that may cause harm to human beings. For example, an overcurrent often occurs in the switching element 22, insulation failure / breakage of a three-phase motor, short circuit breakage, etc. It is an abnormal condition that may lead to fire or electric shock.
  • the air-conditioning system ECU 4 controls the fan control device 2 via the vehicle network CAN 7 in the normal state other than the case where a serious abnormality is detected. As a result, when in the normal state, no load is placed on the upper system on the vehicle side and the communication system such as CAN.
  • the third control unit 24 controls the motor control device 21. Specifically, the third control unit 24 acquires the rotational speed instruction of the three-phase motor 30 via the CAN driver 82, and controls the three-phase motor 30 based on the acquired rotational speed instruction.
  • the third control unit 24 includes a determination unit 25.
  • the determination unit 25 determines the presence or absence of abnormality of the switching element 22 based on at least one of the temperature value, the current value, and the voltage value acquired from the measurement unit 23. Specifically, the determination unit 25 has thresholds regarding the temperature value, the current value, and the voltage value, and determines that the importance is high when the threshold exceeds a predetermined threshold, and the determination result is the vehicle network CAN7. Output to the vehicle side ECU 3 via
  • the threshold value with which the determination part 25 is equipped is not limited to the value regarding a temperature value, an electric current value, and a voltage value itself, It may be decided by the repetition frequency which detects them.
  • the third control unit 24 indicates that there is an abnormality in the control of the three-phase motor 30 with respect to the vehicle side ECU 3 via the CAN driver 82 when an abnormality having a high degree of importance is detected in the switching element 22 Output abnormal information to notify.
  • the measuring unit 23 measures at least one of the temperature value, the current value, and the voltage value of the switching element 22 of the motor control device 21 and outputs the measured value to the third control unit 24. For example, when the three-phase motor 30 or the switching element 22 of the motor control device 21 is broken, the temperature of the switching element 22 becomes high. The unit 24 determines whether there is a failure.
  • the direct current power supplied from the high voltage power supply 40 mounted on the vehicle to the motor control device 21 is converted into a three-phase alternating current and supplied to the three-phase motor 30 to drive the three-phase motor 30.
  • the motor control device 21 is controlled based on the rotational speed instruction of the three-phase motor 30 acquired from the vehicle side ECU 3 provided on the vehicle side via the CAN driver 82.
  • the three-phase motor 30 is rotationally driven, and the radiator cooling fan operates.
  • the temperature value, current value, and voltage value of the switching element 22 are measured, and the measurement result is output to the third control unit 24.
  • the measurement result is compared with a predetermined threshold value, and in the case of a normal state without exceeding the threshold value, the air conditioner system ECU 4 controls the fan control device 2.
  • the measurement result exceeds the predetermined threshold value, it is determined that the importance is high and the abnormality information is notified to the vehicle side ECU 3 via the vehicle network CAN7.
  • abnormality information is acquired from the fan control device 2 via the vehicle network CAN 7 in the vehicle side ECU 3 which is a control circuit on the vehicle side, it is detected that an abnormality has occurred in the radiator cooling fan. By presenting that the abnormality has occurred in the cooling fan for the radiator via the presentation unit (not shown) or the like, the driver of the vehicle can grasp the abnormality. Further, when the vehicle side ECU 3 detects the abnormality information, the vehicle side ECU 3 performs protection control of the entire vehicle including the air conditioner system ECU 4, the fan control device 2, the body system ECU 5 and the power train 6, thereby causing the abnormality information. We can prevent serious accidents in advance.
  • the fan control device 2 having the motor control device 21 for controlling the three-phase motor 30 for driving the cooling fan for radiator mounted on a vehicle A vehicle-side ECU 3 above the control device 2 and an air-conditioner system ECU 4 for controlling the air conditioner of the vehicle are connected via a vehicle network CAN 7 so as to be able to exchange information, and provided in the motor control device 21
  • a vehicle network CAN 7 so as to be able to exchange information
  • abnormality information is output from the motor control device 21 via the vehicle network CAN 7, and the vehicle side ECU 3 which has acquired the abnormality information is a case where the abnormality information is an abnormality having a high degree of importance Protection control of the fan control unit 2 and the air conditioner ECU 4 via the vehicle network CAN7.
  • the abnormality information of the three-phase motor 30 is reported to the vehicle side via the vehicle network CAN 7, the abnormality of the three-phase motor 30 driving the cooling fan can be detected on the vehicle side, and an abnormality of high importance occurs.
  • the air conditioner ECU 4 and the motor control device 21 are protected and controlled from the vehicle side ECU 3, a serious accident can be prevented in advance, and the cause investigation can be used.
  • the fan control device 2, the vehicle side ECU 3 and the air conditioner system ECU 4 are mutually connected via the CAN (vehicle network) 7 so as to be able to exchange information with each other, compared with the conventional rotational speed control by PWM control. Since a fine and quick reaction can be expected, the air conditioner can be controlled with high accuracy in accordance with the state of the three-phase motor 30, which leads to comfortable and precise control of the air conditioner.
  • the air-conditioning system ECU 4 is described as controlling the fan control device 2 via the vehicle network CAN 7 when the fan control device 2 is in the normal state, but the present invention is not limited to this.
  • the fan control device 2 operates with the power supplied from the low voltage power supply 50, performs PWM control in response to the duty, and controls the switching element 22 of the motor control device 21.
  • the air-conditioning system ECU 4 may control the rotational speed of the three-phase motor 30 using the PWM signal.
  • the fan control device 2 and the air conditioner system ECU 4 are connected by a communication network 84 that transmits and receives a PWM signal to control the switching element 22 in the fan control device 2 in response to the duty.
  • the fan control device 2 has a PWM driver 83 for controlling the switching element 22 of the motor control device 21 based on PWM control, and a CAN driver 82 for exchanging information via the vehicle network CAN 7.
  • the rotational speed instruction of the three-phase motor 30 is acquired via at least one of the PWM driver 83 and the CAN driver 82.
  • the fan control device 2 and the air conditioner ECU 4 are connected to the vehicle network CAN 7 so as to be able to transmit and receive PWM signals, the hardware and software of the air conditioning system used in the conventional vehicle are diverted. Can. Further, in the case of CAN communication, since noise resistance is strong as compared with the case of using a PWM signal, by using CAN communication, the influence of noise can be suppressed and the rotation speed instruction can be accurately performed.
  • the control system of the present embodiment is different from that of the first embodiment in that the motor control device is supplied with power from a low voltage power supply.
  • the description of the points in common with the first embodiment will be omitted, and the different points will be mainly described.
  • a fan control device 2 ′ includes a single phase motor 30 ′, a motor control device 21 ′, and a third control unit 24, and is a vehicle that is an in-vehicle network. It is connected to the network CAN7.
  • the fan control unit 2 ' obtains power from the low voltage power supply 50, and the motor control unit 21' obtains power from the low voltage power supply 50 through the non-insulated DC-DC converter 81 '.
  • the phase motor 30 ' is supplied.
  • the power of the low voltage power supply 50 is the power supply for driving the single phase motor 30 '.
  • the fan control device 2 'using the low voltage power supply 50 for motor drive is connected to the vehicle side ECU 3 via the vehicle network CAN 7, so that the abnormality of the single phase motor 30' is detected on the vehicle side. it can.
  • the air-conditioner ECU 4 and the motor control device 21 are protected and controlled from the vehicle-side ECU 3 so that a serious accident can be prevented in advance. It can be useful.
  • control system fan control device 3
  • vehicle side ECU first control device
  • Air conditioner system ECU second control device
  • Vehicle network CAN vehicle network
  • insulation unit 20 inverter system 21 motor control device 22 switching element 24 third control unit
  • DC-DC converter 82
  • CAN driver communication control means
  • PWM Driver PWM Control Means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
PCT/JP2013/079303 2013-02-21 2013-10-29 車両用クーリングファン用制御システム及びその制御方法 Ceased WO2014129019A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201380071765.8A CN104981378B (zh) 2013-02-21 2013-10-29 车辆用冷却风扇的控制系统及其控制方法
US14/760,606 US9421847B2 (en) 2013-02-21 2013-10-29 Vehicle-cooling-fan control system and control method therefor
DE112013006707.2T DE112013006707T5 (de) 2013-02-21 2013-10-29 Fahrzeug-Kühlgebläse-Steuersystem und Steuerverfahen dafür

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013032187A JP6161917B2 (ja) 2013-02-21 2013-02-21 車両用クーリングファン用制御システム及びその制御方法
JP2013-032187 2013-02-21

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Publication Number Publication Date
WO2014129019A1 true WO2014129019A1 (ja) 2014-08-28

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